Clover-hulling attachment for threshing-machines.



No. 754,612. PATENTED MAR. 15, 1904. c. SAYLOR.

CLOVER HULLING ATTACHMENT FOR THRESHING MACHINES.

. APPLICATION FILED APR. 21, 1902.

E0 MODEL.

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filial-gays Patented March 15, 1904. I

PAT NT OFFICE.

CHARLES SAYLOR, or CODYQWYOMING.

CLOVER-'HULLING ATTACHMENT. FOR THRESHlNG-MACHINES.

SPECIFICATION forming part of Letters Patent No. 754,612, dated. March15, 1904.

Application filed April 21, 1902.

To all whom, it may con/061%:

Be it known that I, CHARLES SAYLoR,a citizen of the United States,residing at Cody, in the county of Bighorn and State of Wyoming, haveinvented a new and useful Clover-Hulling Attachment forThreshing-Machines, of which the following is a specification.

My invention is an improved clover-hulling attachment forthreshing-machines, by means of which the machine which is used forthreshing grain may be also employed for hulling clover and foranalogous purposes; and my invention consists in the peculiarconstruction and combination of devices hereinafter fully set forth andclaimed.

In the accompanying drawings, Figure 1 is a sectional view showingtherear portion of a threshing machine provided with my improvedclover-hulling attachment. Fig. 2 isa vertical transverse sectional viewtaken on a plane intersecting the cylinder and concave of my improvedclover-hulling attachment. Fig. 3 is a detail sectional view taken on aplane intersecting the cloverehulling cylinder and concave and parallelwith the axis of the cloverhulling cylinder. Fig. 4 is. a detailvertical sectional view showing one ofthe side sills of thethreshing-machine and one of the supporting-plates thereon disposed forsupporting and admitting of the adjustment of the clover- M hullingconcave.

My improved clover-hulling attachment comprises a cylinder 1 and aconcave 2, which are disposed in the rearportionofthethreshing-machinecasing below the rear end of the grain-shoe a. To the under side of thelatter at its rear end is bolted or otherwise secured a deflector 3,which is angular in cross-sec: tion, as shown in Fig. 1, and has asubstantially verticallydisposed portion. disposed above the throat orspace between the cylin-' der and concave, and thereby adapted to feedthe clover-hulls thereto. It will be understood that the clover hay willbe firstpassed through the usual threshing mechanism and subjected tothe action of the usual separating mechanism, as is described in LettersPatent of the United States, No. 696,498, which was granted to me April1, 1902.

In the construction of the clover-hulling Serial No. 104,041. (Nomodel.)

cylinder 1 I employ a shaft 1, the ends of which are journaled insuitable bearings in the sides of the threshing-machine casing, as at 5.The heads 6 of the clover-hulling cylinderare preferably castings, arecircular in form, and

which one or more may be used, according to the length of the cylinderand the width of the grain-shoe. On the peripheries of the cylinderheadsare longitudinally disposed cylinderbars 10, the inner sides of whichare concaved and adapted to fit snuglyon the cylinder-heads, and theoutersides of said cylinder-bars are concentric with the shaft, as showninFig'. 2. The said cylinder-bars are secured on the cylinder-heads bymeans of bolts 11, theheads of which are socketed in recesses in theouter sides of the cylinder-bars, said bolts extending through openingsin the cylinder-bars and registering openings in the flanged portions 7of the cylinder-heads as shown in Fig. 2. In practice the cylinder-barswill preferably be made of wood, suchas'thoroughly-seasoned hard maple,oak, or hickory. The surface of the-cylinder is formed by ametallic'rubbing-sheet 12,

which is bent around the cylinder; and secured to the outer sides of thecylinder-bars by means of suitable nails 13. From the surface of therubbng-sheet 12 project teeth or beards 14, which'in practice arestru'ckup from the inner side of the rubbing-sheet, and all have their "outerfaces rearwardly inclined from the direction of rotation ofthe cylinderfrom radiallydisposed operating-faces lying about the edge of theopening. In practice the rubbing-sheet is of sheet 'steel aboutone-sixteenth of an inch in thickness, and the teeth or beard thereonare about the size of those on thse rough or course side of ahorseshoe-rasp.

The concave 2 comprisesa pair ofsupporting-bars 15 16, Which arelongitudinally disposed'with respect to the concave and transverselydisposed with respect to the threshingmachine casing, and thesupporting-bar 15 is at the front upper side of the concave, while thebar 16 is at the low rear side thereof.

The said supporting-bars are connected together by curved bridge-bars 17which are transverse with respect to the concave and are curvedconcentrically, or practically so, with relation to the cylinder. Thesebars 17 are of iron or steel and are bolted to the supporting-bars 1516, which are preferably made of wood. On the upper sides of thebridge-bars 17, which are spaced somewhat apart, are securedlongitudinally-disposed concave-bars 18, which are preferably made ofwood, are fitted closely together, and the inner and outer faces ofwhich are concentric, or substantially so, with relation to thecylinder. These bars 18 are bolted to the bridge-bars 17, and the innersurfaces of said bars 18 are covered by a rubbing-sheet 12, as on thecylinder, but the inclined teeth of which project in oppositedirections. The ends of the concave-bars 18 are coterminous with theends of the cylinder, and on the ends of the concave-bars are securedplates 20, which extend upwardly and inwardly from the concave, overlapthe ends of the cylinder, and prevent material, such as clover-seeds,hulled and unhulled, from Working endwise from between the cylinder andconcave. The ends of the supporting-bars 15 16 project somewhat beyondthe ends of the concave.

On the inner sides of the side sills 21 of the threshing-machine aresecured plates 22, which are provided with horizontally disposedbrackets 23, on which the end portions of the supporting-bars 15 16bear, said brackets having upstanding side flanges to bear against thesides of said supporting-bars and prevent lateral displacement of theconcave. Adjustingbolts 24 are provided which engage threaded openingsin the brackets 23 and extend through the supporting-bars, and on theouter portions of the said adjusting-bolts are heads 25 and jam-nuts 26.It will be understood that by partly turning these bolts thesupporting-bars, and hence the concave which they carry, may be adjustedso that the concave may be disposed at the required distance from thecylinder. The jam-nuts enable the adjusting-bolts to be secured againstfurther rotation when the concave has been adjusted.

I employ a valve 6, such as is described in my prior patent hereinbeforereferred to, which valve is disposed above the cylinder 1 and may beturned, as shown in Fig. 1, to cause clover-hulls to be discharged fromthe grain-shoe onto the hulling-cylinder. When the threshing-machine isused for threshing grain, the said valve is closed against thegrain-shoe, in which position it serves to cover the cylinder andconcave constituting the hulling mechanism and forms a chute whichdelivers the tailings directly into the conveyer c.

Having thus described my invention, I claim 1. In combination with acylinder, a concave having longitudinally disposed supportingbars at itsfront and rear sides, fixed brackets on which the ends of said barsrest, said brackets having upstanding flanges bearing against the frontand rear sides of said bars and form ing retaining-guides therefor, andadjustingbolts with which said brackets are provided and bearing underthe bars to adjust the concave, substantially as described.

2. Aclover-hullingconcave comprisinglongitudinally-disposedsupporting-bars at the front and rear sides of the concave,transversely-disposed curved bridge-bars secured to and connecting saidsupporting-bars, longitudinally-disposed bars secured on the upper sidesof said bridge-bars and a metallic rubbing-sheet secured on the concavesurfaces of the last-mentioned bars, and provided on its upper surfacewith tangentially disposed teeth, in combination with a rcvolublecylinder having a similar metallic rubbing-sheet on its periphery,substantially as drscribed.

In testimony that I claim the foregoing as my own I have hereto afiixcdmy signature in the presence of two witnesses.

CHARLES SAYLOR.

Witnesses:

FRANK L. HoEY, FRANK M. WILLnurs.

